Additional Balance Sheet And Cash Flow Information (Property, Plant And Equipment, At Cost) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,802,984	$ 2,684,844
Accumulated depreciation	(1,960,507)	(1,869,380)
Property, plant and equipment, net	842,477	815,464
Land and Related Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	56,146	57,801
Building and Related Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	424,485	417,316
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,153,755	2,042,484
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 168,598	$ 167,243